Rita Ferritsius

Publications

Articles in journals
Conference papers
Manuscripts
Reports

Articles in journals

Lindström, S. B. , Ferritsius, R. , Carlson, J. E. , Persson, J. & Nilsson, F. (2025). Predicting handsheet properties and enhancing refiner control using fiber analyzer data and latent variable modeling. Computers and Chemical Engineering, vol. 199    

Ferritsius, R. , Sandberg, C. , Rundlöf, M. , Ferritsius, O. , Daniel, G. , Engberg, B. A. & Nilsson, F. (2024). Development of fibre properties in mill scale : High-and low consistency refining of thermomechanical pulp (part 2)-Importance of fibre curl. Nordic Pulp & Paper Research Journal, vol. 39: 4, pp. 575-585.  

Lindström, S. B. , Persson, J. , Ferritsius, R. , Ferritsius, O. & Engberg, B. A. (2024). Multivariate lognormal mixture for pulp particle characterization. Cellulose, vol. 31: 3, pp. 1843-1854.  

Ferritsius, O. , Ferritsius, R. , Rundlöf, M. , Reyier Österling, S. & Engberg, B. A. (2022). Heterogeneity of Thermomechanical and Chemi-thermomechanical Pulps described with distributions of an independent common bonding factor on particle level. BioResources, vol. 17: 1, pp. 763-784.  

Sandberg, C. , Ferritsius, O. & Ferritsius, R. (2021). Energy efficiency in mechanical pulping-definitions and considerations. Nordic Pulp & Paper Research Journal, vol. 36: 3, pp. 425-434.  

Fiskari, J. , Ferritsius, R. , Osong, S. H. , Persson, A. , Höglund, T. , Immerzeel, P. & Norgren, M. (2020). Deep eutectic solvent delignification to low-energy mechanical pulp to produce papermaking fibers. BioResources, vol. 15: 3, pp. 6023-6032.  

Ferritsius, R. , Sandberg, C. , Ferritsius, O. , Rundlöf, M. , Daniel, G. , Mörseburg, K. & Fernando, D. (2020). Development of fibre properties in mill scale high- And low consistency refining of thermomechanical pulp (Part 1). Nordic Pulp & Paper Research Journal, vol. 35: 4, pp. 589-599.  

Ferritsius, O. , Ferritsius, R. & Rundlof, M. (2018). Average fibre length as a measure of the amount of long fibres in mechanical pulps - ranking of pulps may shift. Nordic Pulp & Paper Research Journal, vol. 33: 3, pp. 468-481.  

Ferritsius, R. , Ferritsius, O. , Hill, J. , Karlström, A. & Eriksson, K. (2018). TMP properties and refiner conditions in a CD82 chip refiner at different operation points. Part II : Comparison of the five tests. Nordic Pulp & Paper Research Journal, vol. 33: 1, pp. 82-94.    

Ferritsius, R. , Ferritsius, O. , Hill, J. , Karlström, A. & Eriksson, K. (2018). TMP properties and refining conditions in a CD82 chip refiner. Part I : Step changes of process variables, description of the tests. Nordic Pulp & Paper Research Journal, vol. 33: 1, pp. 69-81.    

Ferritsius, O. , Ferritsius, R. , Hill, J. , Karlström, A. , Ferritsius, J. & Eriksson, K. (2017). Process considerations and its demands on TMP property measurements - A study on tensile index. Nordic Pulp & Paper Research Journal, vol. 32: 1, pp. 45-53.  

Karlström, A. , Hill, J. , Ferritsius, R. & Ferritsius, O. (2016). Pulp property development Part II : Process non-linearities and their influence on pulp property development. Nordic Pulp & Paper Research Journal, vol. 31: 2, pp. 287-299.

Karlström, A. , Hill, J. , Ferritsius, O. & Ferritsius, R. (2016). Pulp property development Part III : Fiber residence time and consistency profile impact on specific energy and pulp properties. Nordic Pulp & Paper Research Journal, vol. 31: 2, pp. 300-307.

Reyier Österling, S. , Ferritsius, O. , Ferritsius, R. , Johansson, C. & Stångmyr, J. (2016). Weighted averages and distributions of fibre characteristics of mechanical pulps – Part II: Distributions of measured and predicted fibre characteristics by using raw data from an optical fibre analyser. Appita journal, vol. 69: 1, pp. 64-73.

Karlström, A. , Hill, J. , Ferritsius, R. & Ferritsius, O. (2015). Pulp property development Part I: Interlacing under-sampled pulp properties and TMP process data using piece-wise linear functions. Nordic Pulp & Paper Research Journal, vol. 30: 4, pp. 599-608.    

Reyier Österling, S. , Ferritsius, O. , Ferritsius, R. & Stångmyr, J. (2015). Weighted averages and distributions of fibre characteristics of mechanical pulps Part I : Various methods of weighting data from an optical analyser can give averages that rank pulps differently. Appita journal, vol. 68: 4, pp. 357-368.

Ferritsius, R. , Reyier Österling, S. & Ferritsius, O. (2012). Development of TMP fibers in LC- and HC-refining. Nordic Pulp & Paper Research Journal, vol. 27: 5, pp. 860-871.  

Reyier Österling, S. , Ferritsius, O. & Ferritsius, R. (2012). The influence of fiber dimensions on mechanical pulp long fiber tensile index and density. Nordic Pulp & Paper Research Journal, vol. 27: 5, pp. 844-859.    

Conference papers

Ferritsius, O. , Persson, J. , Ferritsius, R. , Rundlöf, M. & Engberg, B. A. (2022). Opportunities and challenges in describing the heterogeneity of fibres. In Proceedings of the International Mechanical Pulping Conference.. pp. 28--33.

Ferritsius, R. , Moberg, A. , Hallgren, H. , Pettersson, G. , Rundlöf, M. , Engstrand, P. & Engberg, B. A. (2022). Water Absorption and Wet Strength in Hot-pressed Paper. In Proceedings of the International Mechanical Pulping Conference.. pp. 168--170.

Engstrand, P. , Ferritsius, R. , Rundlöf, M. & Paulsson, M. (2019). Decrease in strengthalong a process line for SC paper. In Fundamental Mechanical Pulp Research Seminar, FMPRS2019, Norrköping, SwedenArranged by Mid Sweden University in cooperatrion with Holmen AB, Valmet AB, AF AB and Treesearch..  

Ferritsius, O. , Ferritsius, R. , Ferritsius, J. & Rundlöf, M. (2019). Heterogeneity. In Heterogeneity.

Fiskari, J. , Ferritsius, R. , Osong, S. H. , Persson, A. , Höglund, T. & Norgren, M. (2018). Deep Eutectic Solvent Treatment to Low-Energy TMP to Produce Fibers for Papermaking. In IMPC 2018. Trondheim, Norway :

Ferritsius, O. , Ferritsius, R. , Rundlöf, M. , Engberg, B. A. & Engstrand, P. (2018). The Independent State of Fibres in Relation to the Mechanical Pulping World. In IMPC 2018. Trondheim, Norway :

Sandberg, C. , Ferritsius, O. & Ferritsius, R. (2017). Energy efficiency in mechanical pulping. Paper presented at the 10th Fundamental Mechanical Pulping Research Seminar, Jyväskylä, Finland, 13–14 of June, 2017

Eriksson, K. , Ferritsius, R. , Ferritsius, O. & Hill, J. (2016). Benefits from improved stability in process conditions and pulp properties-a double disc refiner case study. In International Mechanical Pulping Conference 2016, IMPC 2016.. pp. 317--327.

Ferritsius, R. , Sandberg, C. , Ferritsius, O. , Rundlöf, M. , Daniel, G. , Mörseburg, K. & Fernando, D. (2016). Development of Fiber Properties in Full Scale HC and LC Refining. In TAPPI conference proceedings.

Eriksson, K. , Ferritsius, J. , Ferritsius, O. , Ferritsius, R. , Hill, J. , Karlstrorrp, A. & Merseburg, K. (2016). Proper pulp sampling pre-requisite to any pulp property assessment. In International Mechanical Pulping Conference 2016, IMPC 2016.. pp. 1--11.

Hill, J. , Karlström, A. , Ferritsius, R. & Ferritsius, O. (2015). Pulp property development – inside the gap perspective. Paper presented at the 9th International Fundamental Mechanical Pulp Research Seminar, Trondheim, Norway, May 19-20, 2015

Eriksson, K. , Karlström, A. , Ferritsius, R. , Ferritsius, O. & Hill, J. (2015). Recent advances in modelling and control of TMP refining processes. Paper presented at the 9th International Fundamental Mechanical Pulp Research Seminar, Trondheim, Norway, 19-20 May, 2015

Ferritsius, O. , Ferritsius, R. , Hill, J. & Ferritsius, J. (2015). Some insights regarding standards and common practice. Paper presented at the 9th International Fundamental Mechanical Pulp Research Seminar, 19-20 May, Trondheim, Norway, 2015

Ferritsius, O. , Mörseburg, K. & Ferritsius, R. (2014). Bat of CTMP and TMP plants with respect to quality development and energy efficiency. In International Mechanical Pulping Conference, IMPC 2014.

Karlström, A. , Hill, J. , Ferritsius, O. , Ferritsius, R. & Engstrand, P. (2014). Can we increase the proportion of electrical energy into fibre development in existing HC-refiners?. In International Mechanical Pulping Conference, IMPC 2014.

Ferritsius, R. , Sandberg, C. & Ferritsius, O. (2014). LC-refining of mechanical pulps and its influence on fiber curl and handsheet strength properties. In International Mechanical Pulping Conference, IMPC 2014.

Ferritsius, R. , Hill, J. , Ferritsius, O. & Karlstrom, A. (2014). On energy efficiency in chip refining. In International Mechanical Pulping Conference, IMPC 2014.

Ferritsius, O. & Ferritsius, R. (1997). Improved quality control and process design in production of mechanical pulp by use of factor analysis. In Proceedings International Mechanical Pulping Conference.. pp. 111--125.

Manuscripts

Ferritsius, O. , Ferritsius, R. , Rundlöf, M. , Ferritsius, J. , Daniel, G. & Engberg, B. A. Heterogeneity of mechanical pulp particles - variations and correlations beyond averages.

Reports

Engstrand, P. O. , Ferritsius, O. , Björkqvist, O. , Johansson, L. , Johansson, Ö. , Daniel, G. , Ferritsius, R. , Karlström, A. & et al. (2015). Mekmassainitiativet för energieffektivitet, e2mp-i. Sundsvall : Mittuniversitetet (Rapportserie FSCN 2015:58).